题目内容：
阅读文章，回答题：We walked so quietly thatthe nurse at the desk didn' t even lift her eyes from the book. Mum pointed toa big chair by the door and I knew she wanted me to have A seat. While Iwatched, mouth open in surprise, mum took off her hat and coat and gave them tome to hold. She walked quietly to the small room by the lift and took out a wetmop (拖把). Shepushed the mop past the desk and as the nurse looked up, mum nodded and said,"Very dirty floors。
"Yes. I' m glad they've finally decided to clean them," the nurse said. She looked at mum strangelyand said," But aren' t you working late?"
Mum just pushed harder,each swipe(拖) of the mop taking her farther and farther down the hall. I watcheduntil I couldn' t see her and the nurse had turned back to write in the big book.
After a long time mum cameback. Her eyes were shining. She rapidly put the mop back and took my hand. Aswe turned to go out of the door, mum nodded politely to the nurse and said,"Thank you. "
Outside, mum told me,"Dagmar is fine. No fever. "
"You saw her, mu
"Of course. I told her about the hospital rules, and she willnot expect us until tomorrow. Dad will stop worrying as well. It's a finehospital. But such floors! A mop is no good. You need a brush. "
When she took a mop from the small room what mum really wantedto do was A．to clean the floor
B．to please the nurse
C．to see a patient
D．to surprise the storyteller
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